这个是最新官方说法。摘录如下: # z' C4 b# s* ?6 P4 @- U* J7 C/ f6 X% d# _
Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: 0 s7 M$ f w4 \# f
4 s6 q( r* [1 i& \. Z3 U
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 6 ~+ ` N$ n. Z2 u# }
5 [7 z& y* N& a! b$ C3 H+ \
- Children between three years and nine years old with chronic health conditions should get their first half-dose as quickly as possible. They should get a second half-dose at least 21 days later. , N4 ~0 ^. N- r [
; A: C* o" h2 a9 U7 C
- Healthy kids between three years and nine years old should only receive a half-dose of H1N1 vaccine. They don't need to come back for a second shot.
# H6 ~& h) X8 H, t k' TThe Public Health Agency of Canada (Nov 12, 2009) recommends: 4 I) y' O/ q# G8 z ) x. _. a5 Q& _/ i$ Z- x * Children from six months up to and less than three years old receive two half-doses of the H1N1 adjuvanted vaccine. There should be a minimum of 21 days between the two half doses.2 i8 s9 l, I4 @5 J8 Z
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.. a/ Z7 o1 v* u0 u3 E) A
* Children aged three to under 10 years with chronic medical conditions should receive two half doses of adjuvanted H1N1 vaccine. There should be a minimum of 21 days between the two half doses.9 d; Q ^) w4 W+ W: h
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.